List of geological units in Nara prefecture

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A list of stratigraphic units, igneous bodies, and geological structures reported from Nara prefecture, Kinki region, Honshu island, Japan.

Photographs of geological units in Nara prefecture

Jurassic (201.3-145.0 Ma)

Southern Chichibu Belt

Sannoko complex

Kitamatagawa complex

Okutamadani Complex

Kuroishi complex

Daifugendake Complex: Upper Unit; Lower Unit

Wasabidani Complex

Cretaceous (145.0-66.0 Ma)

Southern Chichibu Belt: Osako Complex

Northern Shimanto Belt

Kouyasan Group

Mugitani Formation: Izuo Unit; Sebato Unit

Unokawa Formation

Takaharagawa Formation: Upper Sandstone Unit; Mixed-rock Unit; Lower Sandstone Unit

Akataki Formation

Makio Formation

Heibara complex

Ui complex

Sanbagawa metamorphic rocks

Ryoke metamorphic rocks

Older Ryoke granitoids: Takatoriyama adamellite; Ashihara diorite

Younger Ryoke granitoids

Kobuka granodiorite

Katsuragi quartz diorite

Hase Plutonic Complex: Makimukuyama Granite

Miocene (23.03-5.33 Ma)

Odai caldera

Omine-Odai Acidic Rocks

Inamuragatake formation

Muro Pyroclastic Flow Deposit

Murou volcanic rocks

Setouchi volcanic rocks

Kasugayama Formation: Takamadoyama Basalt; Mikasa Andesite; Mizuyagawa Tuff Member; Sonoha Conglomerate Member

Jigokudani Formation

Sekibutsu Tuff Member

Uppermost

Upper

Lower: L3 Unit; L2 Unit; L1 Unit

Yadahara Conglomerate Member

Onigatsuji Mudstone and Sandstone Member

Higashiyama Conglomerate Member

Setouchi Volcanic Rocks

Nijo Group

Jogashiro Formation: Tanabe member; Terayama volcanic rocks; Sekiya member; Tamateyama Tuff Bed

Harakawa Formation

Upper member

Lower member

Higashiyama formation

Tajiri formation: C member; Kashiwamine volcanic rocks; B member; Kasugayama volcanic rocks; Ishimakuri volcanic rocks; A member

Myojin formation: C member; Myojinyama volcanic rocks; B member; Fujii volcanic rocks; A member

Tomeshosan formation?: B member (New Dorokoro volcanic rocks, Karindobata volcanic rocks); A member (Old Dorokoro volcanic rocks)

Donzurubo formation

Upper Donzurubo member

Anamushitoge formation

Middle Donzurubo member: Ishikiriba volcanic rocks

Lower Donzurubo member

Medake volcanic rocks

Odake volcanic rocks

Yamagasu Group: Taroo Formation; Shioi Formation

Yamabe Group: Sotonohashi member; Hayama Formation; Sogo Formation; Iu Formation

Hata volcanic rocks

Fujiwara Group: Toyoda Formation; Kokuzo Formation; Iwai Formation

Soni Formation: Konagao Conglomerate Member

Tsugeno Formation: Tsugeno Conglomerate Member; Shiraishi Sandstone and Mudstone Member

Nakaoku tuffite dikes: D1 dyke

Takegi dikes: D4 dyke; D7 dyke

Omine Granitic Rocks: Dorogawa Body; Shirakura Body; Kose Body; Asahi Body; Tenguyama Body; Shiratani Body; Katago-Mukuro Body

Miyataki Dyke

Pleistocene (2.58- 0.01Ma)

Osaka Group

Shobudani formation

Sakate Tephra

Geological structures

Median Tectonic Line

Omine-Odai thrust fault

Heibara thrust fault

Todake thrust fault?

Ui thrust fault

Iroo thrust fault

Takahara fault?

Shimotakogawa fault

Shionoha-Kamataki fault

Otaki-Kitazumi fault

Sanbyaku fault

Kongo fault

Yoshinoyama anticline

Omine syncline

Shirahige syncline